# US 10,455,473 B2 · Wireless communication

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- Number: US 10,455,473 B2
- Document ID: US10455473B2
- Status: Granted
- Kind: B2
- Application number: 15/812,418
- Filed: 2017-11-14
- Published: 2018-10-04
- Granted: 2019-10-22
- Earliest claimed: 2017-03-29
- Assignees: Fuji Xerox Co., Ltd.
- Applicants: Fuji Xerox Co., Ltd.
- Inventors: Toshiaki Koue
- Web page: https://patentgrep.com/patent/US10455473B2

## CPC

- H04N 1/33361: {according to characteristics or the state of the communication line (H04N1/33353 and H04N2201/33371 take precedence)}
- H04N 1/32797: {Systems adapted to communicate over more than one channel, e.g. via ISDN (changing transmission mode according to type of channel H04N2201/33364; multichannel or multilink communication protocols H04L69/14)}
- H04N 1/33323: {transmission mode only, e.g. speed}
- H04W 36/302: {due to low signal strength}
- H04N 2201/0055: By radio
- H04N 2201/006: Using near field communication, e.g. an inductive loop
- H04N 2201/0094: Multifunctional device, i.e. a device capable of all of reading, reproducing, copying, facsimile transception, file transception
- H04W 36/06: Reselecting a communication resource in the serving access point
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

An information processing apparatus includes a communication unit, a first switching unit, and a second switching unit. The communication unit is configured to conduct a wireless communication using a plurality of transmission methods, one of which has plural channels. The first switching unit switches between the transmission methods according to quality of a communication that is being conducted. The second switching unit switches between the channels when the first switching unit could not switch between the transmission methods.

## Claims

### Claim 1

An information processing apparatus comprising:
a processor programmed to:
conduct a wireless communication using a plurality of transmission methods, at least one of which has a plurality of channels; and
while conducting a communication using a respective one of the plurality of transmission methods and according to quality of the communication that is being conducted using the respective transmission method:
determine if there is a qualifying one of the plurality of transmission methods that (i) is different from the respective transmission method and (ii) has not been previously used by the communication that is being conducted;
in response to determining that there is the qualifying transmission method, switch the respective transmission method to the qualifying transmission method; and
in response to determining that there is no qualifying transmission method, switch between channels of the respective transmission method.

### Claim 2 (depends on 1)

The information processing apparatus according to claim 1, wherein the processor is programmed to:
if a number of times of the switching to the qualifying transmission method is greater than or equal to a predetermined value, switch between the channels of the respective transmission method.

### Claim 3 (depends on 1)

The information processing apparatus according to claim 1, wherein the plurality of the transmission methods include IEEE802.11ad.

### Claim 4 (depends on 3)

The information processing apparatus according to claim 3, wherein
the respective transmission method is switched to the qualifying transmission method which is IEEE802.11ad.

### Claim 5 (depends on 1)

The information processing apparatus according to claim 1, wherein
the respective transmission method is switched to the qualifying transmission method which is a predetermined transmission method with a predetermined channel.

### Claim 6 (depends on 5)

The information processing apparatus according to claim 5, wherein the processor is programmed to:
determine the predetermined transmission method and the predetermined channel at a time when the information processing apparatus is installed.

### Claim 7 (depends on 1)

The information processing apparatus according to claim 1, further comprising:
a memory that stores a first table that indicates whether each one of the plurality of transmission methods is currently in use or has been previously used by the communication that is being conducted.

### Claim 8 (depends on 7)

The information processing apparatus according to claim 7, wherein
the memory further stores a second table that indicates whether each one of the channels of the respective transmission method is currently in use or has been previously used by the communication that is being conducted.

### Claim 9

A non-transitory computer readable storage medium storing an information processing program that, when executed, causes a computer to:
conduct a wireless communication using a plurality of transmission methods, at least one of which has a plurality of channels; and
while conducting a communication using a respective one of the plurality of transmission methods and according to quality of the communication that is being conducted using the respective transmission method:
determine if there is a qualifying one of the plurality of transmission methods that (i) is different from the respective transmission method and (ii) has not been previously used by the communication that is being conducted;
in response to determining that there is the qualifying transmission method, switch the respective transmission method to the qualifying transmission method; and
in response to determining that there is no qualifying transmission method, switch between channels of the respective transmission method.

### Claim 10

A method of communication for an information processing apparatus comprising:
conducting a wireless communication using a plurality of transmission methods, at least one of which has a plurality of channels; and
while conducting a communication using a respective one of the plurality of transmission methods and according to quality of the communication that is being conducted using the respective transmission method:
determining if there is a qualifying one of the plurality of transmission methods that (i) is different from the respective transmission method and (ii) has not been previously used by the communication that is being conducted;
in response to determining that there is the qualifying transmission method, switching the respective transmission method to the qualifying transmission method; and
in response to determining that there is no qualifying transmission method, switching between channels of the respective transmission method.
